US473023A - Ditching-machine - Google Patents

Description

(NO Model.) Smeets- Sheet 2.

D. W. SCOTT. DITGHING MACHINE.

No. 473,023.' l Patented Apr. 19, 1892.

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' D. W. SCOTT.A

DITGHING MAGHINB. No. 473,023. l Patented Apr. 19, 1892.

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DAVID lV. SCOTT, OF COZAD, NEBRASKA.

DlTCHlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 473,023, dated April 19, 1892.

Application filed November 27, 1891. Serial No. 413,308. (No model.)

for any purpose whatever-for instance,such

as gutters at the sides of roads, irrigatingchannels, duc.

Various other objects and advantages of the inventionwill appearin the following description, and the novel features thereof will be particularly pointed out in the claims.

Referring to the drawings, Figure 1 is aside elevation of a ditching-machine constructed in accordance with my invention, the ditching-shovel being lowered as for operation. Fig. 2 is a vertical longitudinal central section thereof. Fig. 3 is a plan view of the same. Fig. 4 is a rear end elevation. Fig. 5 is a vertical transverse section, the section being taken immediately in frontof the ditchingshovel.

Like numerals ofV reference indicate like parts in all the figures of the drawings.

1 designates the front axle of the machine,

and at the ends of the same the usual groundwheels 2 are mounted for rotation. To the front of the axle the draft tongue or pole 3 is loosely connected, as at 4, and between the rear bifurcated ends of the same a pulley 5 is mounted for loose rotation.

6 designates the bolster of the machine, which, through the medium of the usual kingbolt 7, is pivotally mounted upon the axle 1. The bolster carries a platform S, upon which is mounted the seat 9 for the driver. Secured at their front ends to the bolster is a pair of parallel side beams lO, whose under sides near their rear ends have bolted thereto bearingboxes 11 for the accommodation of the rear axle 12, carrying at its ends the rear wheels 13.

Upon the side beams 10,immediately in rear of the platform 3, there is bolted a pair of triangular standards 14, the upper ends of which are curved, as shown, and provided with teeth 15. and its bifurcations diverged, as shown,for journaling in the standards concentric with and below the curved toothed upper ends thereof. A loose gravity-pawl 17, designed to slide upon the lever and retained in posi-.

A lever 16 has its lower end bifurcated 24 designates an inVerted-U-shaped stirrup l located immediately in rear of the drum-supporting 'standards 14, and 25 a similar, though longer, stirrup located in rear of the stirrup 24. These stirrups, as before stated, are ot` inverted -U shape and their vertical terminals take looselybetween the side bars 10 of the machine. A reach 26, having a general L shape, is bolted, as at 27, to the centerv of the rear stirrup, while the front end of said reach is adjustably connected to the vfront stirrup 25 by a set-bolt 28, that may be passed through any one of a series of perforations 29, with which the reach near its front end is provided.

30 designates the ditching-shovel, which has bolted thereto the ditching-point 31 and at its opposite sides the Wings 32, whose disposition is rearward. The lower ends or terminals of the stirrup 25 are pivoted, as at 33, to the rear extremities of the wings, wh ile from the front extremities thereof standards 34 rise. The standards 34, like the terminals of the front stirrup, are provided with perforations, and Overlapping the same are shortened and lengthened, or, in other words, adjusted by set-bolts 35.

A bail of inverted-U shape and designated by the numeral 36 has its terminals laterally disposed and loosely bearing in eyes 37, mounted upon the beams or side bars 10, midway the stirrups 24 and 25. The upper end of the bail takes under the reach 26, that connects the stirrups, and is embraced loosely at opposite sides of the reach by the bent ends 38 of an inverted-U-shaped link 39, whose forward end engages with the lever16. Adraft-chain 40 is connected at its lowerrear end to the cpposite standards 34 of the ditching-shovel, and its opposite end, after having been passed forwardly and partially around the piilley of the draft-pole, is upwardly and rearwardly disposed and -connected loosely with a handlever 41, fulcrumed, as at 42, in a segmentally-tootl-ied standard 43. This lever is pro` vided with a gravity lookingpawl 44, designed at its lower end to engage the teeth of the standard, and both the lever and pawllare within easy and convenient grasp of the hand of the driver.

Oppositestandards 45, bolted to the rear ends of the beams 10, serve as a support for a rotatable shaft 46, mounted in the upper ends of the standards. This shaft extends beyond one of its bearings directly over the rear axle, and at said extendedend provided with a small gear 47, by which the shaft is operated through the medium of a mastergear 48, having peripheral and side teeth, the former engaging the gear 47. Upon the shaft 46 sprocket-wheels 49 are mounted, one near each of the beariiig-standards 45, and a sprockbelt 50 is mounted upon each of the wheels. These chains carrya belt or elevator 51, provided at intervals with blades 52; The upper edges of the wings 32 are provided with inclined open bearing-slots 53, and iii the saine is mounted the transverse shaft 54, carrying a roll 55, supported directly in rear of the shovel 30 and slightly below the upper end thereof. Over this roll the lower end of the endless carrier, constructed in the manner described, travels.

Apairofinclined side bars 56 are supported transversely at the rear end of the machine and are connected at their ends by trans- Y' versely-disposed shafts 57 and 58, each of which carries a4 pair of sprocket-wheels 59, andare connected by a belt-carrying sprocketchain 60, located at one end ,immediately under the upper rear end of the endless carrier 51 vand adapted to receive the dirt from said end as the carrier elevates the saine. 'lhe shaft 57 is extended beyond its front bearing and is there provided with a beveled gear 61, the teeth of which are engaged by the inner facial teeth of the master-gear 48, through the medium of which this rear discharging-carrier is operated.

Pivoted ,at 62 to one of the side terminals of the rear stirrup 25 is a loosely-depending rack-bar 63, the rear face of which is provided with a series of inclined teeth upwardly disposed and adapted to engage by gravity with a pin 64.

In a segmentallytoothed standard 65, mounted upon the platform iinderthe drivers seat, there is fulcrumed, as at 66,a foot-lever 67. This lever is loosely connected to the rack-bar 63 by means of a connecting-rod 68.

Bolted pivotally at their front ends tothe wings 32 of the shovel, as indicated at 69, is a pair of sides 70, which at their Lipper ends are slotted, as at 71,- for loose connection by means of bolts 72 with the upper ends 0f the rear vstandards 45.

Brackets 73, reduced at their front ends, are bolted `rigidly to the short vertical standards 34, and upon their reduced front ends are mounted the eyes 74, in'which a pair of L- shaped scrapers 75 terminate. rFliese scrapers are provided near their lower ends with the blades 76, while their upper ends terminate in handles 78 at each side of the machine. Toothed bars 79 extend from the opposite side beams 10, vertically above the brackets 73, and into any of the teeth of said bars the scrapers at their upper ends maybe swung, so that the scrapers are maintained at any desired inclination or distance from the machine. The scrapers are locked in the notches of the bars by-nieans of a pair of flat spring-plates 80, that extend laterally from the bars 10 directly in front -of the locking- -bars 79, and are sufficiently yielding t0 permit, when force is applied, to the withdrawalv of the upper ends of the scrapers from engagement with any of the notches of the lockin g-bar, wherebya re-engagement and adiustment of the scrapers may take place.

The operation of the machine and the functions of the various parts will be obvious from the foregoing description, when considered in connection with the accompanying drawings,

vand also -in connection with the following brief statement: The driver, perched upon the seat, reaching back manipulates the le ver 16, so as to lower as a whole the scraping mechanism, he having previously, however, liberated the locking-pawl 17 from engage- 'mentwith theteeth of the locking-segment. As the mechanism descends to a point below the surface of the ground,'the locking-bar 63 rides loosely over the pin 64 and at a convenient point or notch engages therewith. The draftchain-adjusting lever 41 is now loosened or thrown forward and the driver, by manipulating the crank-wheel 21, raises 0r lowers IOO IIO

the point 31 of the ditcliing-shovel through the medium of the cable 81, which connects the front stirrup with the drum 20. The lever 41 is now readjusted, so as to give a proper draft-tension upon the chain40. If-

it be desired to form a ditch with opposite parallel vertical sides, the scraping-levers 75 are swung inwardly until engaged with the inner notches of their locking-bars 79, and hence their blades 76 brought in parallelism withI the ditching-shovel. If, however, it is desired to form ditches with inclined or upwardly-diverging side walls, the same may` be accomplished to a desirable degree simply by inclining the levers 75 vand readjiisting them in any of the outer notches ofthe locking-bars 79. The dirt removed by the shovel is carried up over the same, drops upon the endless carrier 51, and is delivered by the latter at its rear end upon the transverse carrier 60, and from thence to one side of the ditch upon the ground. It will thus be seen that I have succeeded in providing a machine combining strength, simplicity, and durability of construction, which is easily operated and will successfully and with facility form ditches of various depths, widths, and

formations, and, furthermore, that all the va-A rious means of adjustment thereof are within easy reach and adapted to be manipulated by the driver, whereby but one man need be employed in the operation of the machine.

Having described my invention, what I claim is- 1. In a ditching-machine, the combination, with the frame-work, ot' a pair of inverted-U- shaped stirrups, a ditching-shovel connected to the lower ends of the same, an adjustable reach connecting the upper ends of the stirrups, means for raising and lowering the stirrups conjointly, and means for independently raising and lowering the front stirrup and point of the shovel, substantially as specified.

2. In a ditching-machine, the combination, with the frame-Work, the front and rear inverted-U-shaped stirrups, and the shovel connected at the lower ends of the same, of a reach connecting the upper ends of the stirrups, a pair of standards, a lever fulcrumed in the standards, a drum-shaft fulcrumed in the standards, means` for locking the lever and shaft, a cable connecting the drum-shaft with the front stirrnp, an inverted- L-shaped bail fulcrumed on the frame and taking against the under side of the reach, and an inverted-U-shaped link connected with the lever and the bail, substantially as specified.

3. In a ditching-machine, the combination, with the opposite side bars 10, the front and rear stirrups 24 and 25, the same being of inverted-U shape and mounted between the side bars, the ditching-shovel 30, having the point 3l, the wings 32, pivoted at their rear ends to the rear stirrup and at their front ends having the standard 34 adjustably connected with the terminals of the front stirrup, and the -reach 26, adj ustably connected to the upper ends of the stirrups, of the triangular standards 14, terminating at their upper ends in the segmentally-toothed locking-heads, the curved lever 16, journaled in the heads, the sliding pawl 70, mounted on the lever and adapted to engage the teeth of heads, the bail 36, pivoted, as at 37, to the side beams 10 and taking under the reach, the

link 39, connecting the bail with the lever 16, the drum-shaft 19, carrying the drum 20, journaled inv the standards 14, the hand-wheel mounted on the end of the drum-shaft, the

pawl for locking 'the hand-wheel, and the ca-l with the opposite side bars and the shovelsupporting vertically-adjustable stirrups, of means for raising and lowering the stirrups, a pin on the side bar, a foot-lever pivoted to the frame-work, a rack-bar having upwardlydisposed teeth pivoted to the shovel-supporting stirrup, a'pin on the frame for engaging the same, and a connecting-rod between the foot-lever and rack-bar, substantially as Specified.

6. In a ditching-machine, the combination, with the frame-work, the adjustable shovel, and the supporting-stirrups for the same, of brackets extending from one ofthe supporting-stirrups, blades terminating at their upper ends in levers pivotally engaging the front ends of the brackets, a pair of .notched locking-bars extending from the frame and adapted to engage the levers, and a pair of springplates for yieldingly pressing the levers into such engagement, substantially as specicd.

7. In a ditching-machine, the frame-work provided with the stirrups 24 25 and a reach 26, connectingthe stirrups, the ditching-shovel pivoted to the stirrups 25, and means for raising and lowering the stirrups, substantially as specified.

8. In a ditching-machine, the L-shaped Scrapers 7 5, provided with blades 76, the handles 7 8, and locking means for the Scrapers, in combination with the ditching-shovel, whereby the scraping-levers may be operated so as to bring their blades into parallelism with the shovel, as set forth. y

In testimony that I claim the foregoing as my own I have hereto aftixed my signature in the presence of two witnesses.

DAVID W. SCOTT.

Witnesses:

M. H. BROWN, L. P. OWEN.

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